>
>
> On Mon, Sep 25, 2017 at 2:33 AM, J.F. Rick <
[hidden email]> wrote:
>>
>> Hi Clement and and Stef,
>>
>> thanks for sharing. The video looks cool and it seems like a
>> high-performance approach. Unfortunately, it doesn't seem to be working in
>> Linux. I'm attaching the Pharo debug file, but it seems like the Handler
>> being OSNullWindowHandle indicates a problem. I'm also not sure that this
>> approach would allow me to do fullscreen apps. I noticed that your video
>> shows a title bar in MacOS.
>>
>
> I've never made the demo work on linux, I am not surprised it doesn't work.
> This demo is based on the Pharo 4 OSWindow version, and more recent versions
> are working fine on linux.
>
> About fullscreen as I said in the previous mail it is possible to enable it,
> I tried it worked, but I did not do it as I don't think it make sense with
> this game.
>
> I will consider in the future making it work on the latest Pharo version on
> multiple OS if it makes sense to show people how to do it. I'm busy with
> other concerns right now.
>
> Anyway, it's just one approach, you can use another one.
>
>>
>> Cheers,
>>
>> Jeff
>>
>>
>>
>>
>>
>> On Sun, Sep 24, 2017 at 7:53 AM Clément Bera <
[hidden email]>
>> wrote:
>>>
>>> Hi,
>>>
>>> I describe in the next paragraphs what I do to build application with
>>> Pharo at 50 fps. Now I am using a SDL2 window with OSWindow and not the
>>> default Pharo window for rendering. There is a fullscreen option with
>>> OSWindow, I don't use it but I've just tried it works fine.
>>>
>>> To use Athens/Cairo I start the VM headless and I open from the code a
>>> window using the SDL2 binding (OSWindow), then I extract the window surface
>>> as a cairo surface to draw on it using Athens and I use SDL2 to manage
>>> events (mouse, keyboard). That way I don't even start morphic/WorldMorph
>>> which wastes cpu ressources.
>>>
>>> I built this video game that way:
>>>
>>>
https://clementbera.wordpress.com/2016/08/29/sdl2-cairo-headless-for-realtime-native-applications/>>>
https://www.youtube.com/watch?v=srPdFgbyS6s>>>
>>> The game is running in Pharo 4 (pre-Spur). I configured it to run at 50
>>> fps but from time to time some frames are dropped for performance so I would
>>> say it is running at around 48-49 fps in practice. I think it should work on
>>> the latest Pharo but you need to ask on pharo-dev how to use OSWindow. Some
>>> APIs have changed since Pharo 4. Since the latest Pharo version is now using
>>> Spur I expect the performance to be way better and I think 50 fps is
>>> definitely manageable on a laptop.
>>>
>>> Note that this is still Pharo so if you want something which looks
>>> real-time you need to be careful about you object allocation rate in-between
>>> frame rendering.
>>>
>>> I hope this can help.
>>>
>>> Regards
>>>
>>>
>>>
>>> On Sun, Sep 24, 2017 at 9:43 AM, Stephane Ducasse
>>> <
[hidden email]> wrote:
>>>>
>>>> Hi jeff
>>>>
>>>> let us know if this is working. the start.sh script is not working on
>>>> my machine. but clement made it worked on his machine and he should
>>>> publish a zip.
>>>>
>>>> Stef
>>>>
>>>>
>>>>
>>>> On Sun, Sep 24, 2017 at 9:39 AM, Stephane Ducasse
>>>> <
[hidden email]> wrote:
>>>> > Yes I will share a dropbox with you for now.
>>>> >
>>>> > On Sat, Sep 23, 2017 at 9:44 PM, J.F. Rick <
[hidden email]> wrote:
>>>> >> Hi Stef,
>>>> >>
>>>> >> since I'm only doing Athens rendering, it might be possible to do a
>>>> >> native
>>>> >> window implementation. That said, I don't know how to get started
>>>> >> with that.
>>>> >> Documentation seems to be hard to find. The last time I saw any work
>>>> >> on that
>>>> >> it was too early to be usable. I'm also not sure if it solves my "it
>>>> >> needs
>>>> >> to run in fullscreen at full speed" problem. If someone like Clement
>>>> >> could
>>>> >> get me started, that would be awesome.
>>>> >>
>>>> >> Cheers,
>>>> >>
>>>> >> Jeff
>>>> >>
>>>> >> On Fri, Sep 22, 2017 at 12:27 PM Stephane Ducasse
>>>> >> <
[hidden email]>
>>>> >> wrote:
>>>> >>>
>>>> >>> Hi Jeff
>>>> >>>
>>>> >>> Nice to see you. I do not know anybody running on X11. Esteban is
>>>> >>> working on better SDL20 integration.
>>>> >>> Did you try having a native window? I asked clement if he could
>>>> >>> release the Wizard Battle Arena because it was a game he did in a
>>>> >>> couple of days (yes he is good this guy) and that use cairo athens
>>>> >>> based for drawing on native window.
>>>> >>>
>>>> >>> stef
>>>> >>>
>>>> >>> On Fri, Sep 22, 2017 at 3:11 PM, J.F. Rick <
[hidden email]> wrote:
>>>> >>> > I'm running a fullscreen Pharo application on Ubuntu and I've
>>>> >>> > noticed
>>>> >>> > that
>>>> >>> > Athens rendering gets way worse (maybe 10 updates per second) when
>>>> >>> > I
>>>> >>> > switch
>>>> >>> > to fullscreen mode from inside Pharo. Ideally, I'd love for that
>>>> >>> > to be
>>>> >>> > fixed.
>>>> >>> >
>>>> >>> > In lieu of that, it would be cool if I could just maximize Pharo
>>>> >>> > to the
>>>> >>> > size
>>>> >>> > of the screen to achieve good performance. Two things stop that:
>>>> >>> > the
>>>> >>> > Unity
>>>> >>> > application bar and the title-bar. For the former, I can configure
>>>> >>> > Unity
>>>> >>> > to
>>>> >>> > hide it. I noticed a '-notitle' X11 option when I execute pharo
>>>> >>> > -help.
>>>> >>> > I've
>>>> >>> > tried using these X11 options and neither -notitle or -fullscreen
>>>> >>> > seem
>>>> >>> > to
>>>> >>> > have any effect. Here's the command I run:
>>>> >>> >
>>>> >>> > ./bin/pharo --encoding utf8 -vm-display-X11 -fullscreen
>>>> >>> > PATH_TO_IMAGE &
>>>> >>> >
>>>> >>> > Pharo starts fine but neither option seems to have any effect.
>>>> >>> > I've also
>>>> >>> > tried this in GNOME, thinking that Unity was the problem. Again,
>>>> >>> > no
>>>> >>> > effect.
>>>> >>> >
>>>> >>> > Any suggestions?
>>>> >>> >
>>>> >>> > Jeff
>>>> >>> >
>>>> >>> >
>>>> >>>
>>>> >>
>>>>
>>>
>
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